Stencil printing machine



Dec. 2, 1930.

J. H. PETERSEN STENCIL PRINTING MACHINE Filed June 8, 1929 2Sheets-Sheet 1 INVENTOR john J'L. Petersen/ BY A WITNESSES ATTORNEYSDec. 2, 1930. J. H. PETERSEN STENCIL PRINTING MACHINE ile J n 8. 1929 2Sheets-Sheet 2 INVENTOR v Jbhndf. Pei'erserb WITNESSES ATTORNEYS -1 9Fig. 2- is a plan View.

Patented Dec. 2 1 930 mm; new

' STENCIL rRINTrndMAcHin-E' Application filed June 8, 1929. -se ia11woiasaA12.

This invention relates to stencil printing machines of the type used forprinting on or decorating textile fabrics and closely analogousmaterials; I 1

;, 5 An object of the invention is to provide improvements in a machineof the indicated character whereby the stencil cylinder and the materialbeing print-ed or decorated will be synchronized to move at thesame'rateof 1 9 Speed to insure accuracy in the printed or decorative patterns ordesigns.

Another object of the invention is to provide improvements in a machineof the indicated character whereby the stencil cylinder 4 will bereadily removable, for the purpose of cleaning the same whenever theoccasion arises, and which enables adjustment of the spraying devices tobe readily made with respect to said cylinder, whilethe machine is inoperation. r i

Another object of the invention is to provide a machine of the indicatedcharacter with improved means for drying the printing 25 fluid orcomposition on the stencil cylinder, to prevent smudging or theproduction of imperfect patterns or designs.

The nature of the invention and its distinguishing features andadvantages will appear when the following specification is read inconnection with the accompanying drawings, in which 7 Figure 1 is alongitudinal section of a machine embodying the features of the presentinvention.

Fig. 3 is a fragmentary transverse section. Fig. 4 is an enlargedsection of the stencil cylinder.

Fig. 5 is a detail section. Referring now more particularly to thedrawings it will be apparent that the machine includes a frame 10. Onthe frame is mounted a stencil cylinder 11. The stencil v cylinder 11 isprovided with perforations or openings 12 which formulate or define thepattern or design elements to be produced on the textile fabric orclosely analagousmaterials. The stencil cylinder 11 is open at each end,and each end has arranged thereon a ring gear Each ring gear'13 is inmesh @inventioniuse'is made aofsaplurali-ty offspray-:disposedrespectively at opposite fendsbf the with smash an 5 16 :tra sShaf lfiflonrnaled for rotation in suitable bearings Zsecuredto;1ihesidemem er l 0 the am 10. Hike zshaft l6-on which the pinions {14ers t ;hamoun e hereon a .WO I g a 25] 'l9iwihach meshcswlth a worm 20 onallongitudjnal-.,sha-ftw2l journaled for rotation in uitable JqearingsBs ured tot ide m w bers;18.'-.{l ;he1sha-ft Qlflhas ,a bevel gear 23which meshes with a bevel gear QAon-a trans- Q9 verse shaft 25,journaled for rQtation in sui;table jibearings 26,011 the frame. Motionis transmitted to. the shaft 25 :by any suitable pmmemover' suchasa-motor27andlthe interventioniof belts andpulleys generally ,dcsigiinat8CF 28. L- .11: v I g.iThe'itextiler-fabnic or other closelvanalor. 1gous materialito beiprinted on or decorated is supported .and fed in theapresenceof the stencil cylinder-llzinithe mannerandbytm means ipresentlyatoebe described. A :rollflof texti'1efahr-id29is supported iinan-ypreferred manner 'on one .=end ;of the frame 10, .sand the fabric passesover the roller 30, thencc under tensiongrollers 31 zandovler 91a:sprea'der 82intel-posing itheirollers 61, zthe'nce over pressin g orcompression rollers contact with the cylindrical sunface iof'lthe.stencil cylinder l hlthence under and gover rollers E34, ;35, 3.6, andbetweenxa roller 37 ianda drum38, and from the latter .to a rolgl 39. IAdlIof the 311011- ers, drum 3'81andiroll39 may besupportedif0r rotationon t-hegframe' 10 in any apractical manner; Theijdruin"3-8fispositively:driizeiilby 'theintervention ofgearsfAO so that the :stencilcylinders 11 and the drum 38 will besynchroniz ed to move at the samerate' ofispeed, to insur'eaccuracy qinithev printed or decoratifvepatterns ordesigns produced 5011 :the 'fabric. fl h'e'roll 39 maybeaotalted in any .practic'atlfimnrierwto wine .iihe :finished' lfabiricthereon; I In accordance with another feature o'fmhe i-n'g devicesiorSg'uns 'liheselguns 411 are arranged for'iaxial :anfd pivotal .a'dustneiition a rod42 supponted ;for.ventical.- adj ustme'Iitiby guidestandardszfi.respectivelyssecured tothe side membe iszlfi:oftheframe-ld-so as" tobe stencil cylinder 11. The rod 42 isprovided with suitable clamping elements or nuts 44 which clampinglyengage the standards 43 to maintain the rod 42 in the desired positionof adjustment. The spraying devices or .g'llns 41 project the dye orother printing fluid or composition, in the form of sprays through theperforations or openings in the stencil cylinder 11 so as to beimplanted on the fabric. Any preferred number of spraying devices orguns 41 may be'used accordingto the particular width of the fabric beingprinted or decorated.

In accordance with another feature of the invention, the stencilcylinder 11 is held against displacement, with respect to the fabric,and also to prevent de-meshing of the ring gears 13 with the pinions l4and 15, but to allow the stencil cylinder 11 to be intentionallyremoved, by pairs of rollers 45 and 46, rotatably supported by a bearingbracket 47 secured to one of the side'members 18 of the frame. Theroller 45 of each pair is in contact with the inside of the stencilcylinder 11, whereas the roller '46 of each pair is in contact with therelated ring gear 18 as shown most clearly in Fig. 5. Each of therollers 45 may be swung out of contact with the stencil cylinder 11which enables the stencil cylinder 11 to be removed, by merely removingthe rod 42. The stencil cylinder 11 must be removed from time to timefor the purpose of cleaning the interior surface thereof, to rid thesame from accumulations of the printing composition or dye. I

In accordance with another feature of the invention there is providedmeans for drying the printing fluid or composition on the stencilcylinder, to prevent smudging, or the production of imperfect patternsor designs, and this is accomplished bythe use of a perforated tube 50extending substantially parallel to the outer surface of the stencilcylinder 11 to project jets of gas toward the stencil cylinder 11. Thegas is fed to the tube 50 from any suitable supply source, and iscontrolled by a valve 51- in the tube 50.

It is to be understood that two or more cylinder sets may be used in themachine for the purpose of producing two or more color prints. r

I claim:

1. In a stencil printing machine, the combination of a frame, a stencilcylinder open at each end, a ring gear on each end of said cylinder,shafts rotatably supported on said frame in spaced parallel relation insubstantially the same horizontal plane, a pair of pinions on each shaftin mesh with said gears, means to drive one of said shafts to rotatesaid cylinder, and rollers on said frame in rolling contactwith saidgears, to prevent the axial movement of said cylinder.

2. In a stencil printing machine, the combination of a frame, a stencilcylinder open

